function third_floor_overmenu(i){
	document.getElementById("third-floor-back-ul-li-a"+i).style.color="red";
	document.getElementById("third-floor-menu"+i).style.zIndex="99999";
	document.getElementById("third-floor-menu"+i).style.display="block";
}
function third_floor_outmenu(i){
	document.getElementById("third-floor-back-ul-li-a"+i).style.color="black";
	document.getElementById("third-floor-menu"+i).style.zIndex="-99999";
	document.getElementById("third-floor-menu"+i).style.display="none";
}
